package com.atguigu.gulimall.product.service.impl;


import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;


import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrRespVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;




@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao relationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;

    @Autowired
    CategoryService categoryService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }

    @Transactional
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        //1、保存基本数据
        this.save(attrEntity);
        //2、保存关联关系
     if(attr.getAttrGroupId()!=null){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(relationEntity);

        }


    }

    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {

//        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<>();
//        if (catelogId!=0){
//            queryWrapper.eq("catelog_id",catelogId);
//          }
//        String key = (String) params.get("key");
//        if (!StringUtils.isEmpty(key)){
//            queryWrapper.and((wrapper)->{
//                wrapper.eq("attr_id",key)
//                        .or()
//                        .like("attr_name",key);
//            });
//        }
//        IPage<AttrEntity> page = this.page(
//                new Query<AttrEntity>().getPage(params),
//                queryWrapper
//        );
//        PageUtils pageUtils = new PageUtils(page);
//        List<AttrEntity> records = page.getRecords();
//        List<AttrRespVo> attr_id = records.stream().map(attrEntity -> {
//            AttrRespVo attrRespVo = new AttrRespVo();
//            BeanUtils.copyProperties(attrEntity, attrRespVo);
//            //设置分类和分组得名字
//            AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>()
//                    .eq("attr_id", attrEntity.getAttrId()));
//            if (attrId != null && attrId.getAttrGroupId() != null) {
//                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
//                attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
//            }
//            CategoryEntity categoryEntity = categoryService.getById(attrEntity.getCatelogId());
//            if (categoryEntity != null) {
//                attrRespVo.setCatelogName(categoryEntity.getName());
//            }
//            return attrRespVo;
//        }).collect(Collectors.toList());
//        pageUtils.setList(attr_id);
//        return pageUtils;

        //equalsIgnoreCase  不区分大小写得equals
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>()
                .eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());

        if(catelogId != 0){
            queryWrapper.eq("catelog_id",catelogId);
        }

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            //attr_id  attr_name
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );

        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            //1、设置分类和分组的名字
            if("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attrId != null && attrId.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }

            }


            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;
        }).collect(Collectors.toList());

        pageUtils.setList(respVos);
        return pageUtils;
    }

    @Override
    public AttrRespVo getAttrInfo(Long attrId) {

//        AttrRespVo attrRespVo = new AttrRespVo();
//        AttrEntity attrEntity = baseMapper.selectById(attrId);
//        BeanUtils.copyProperties(attrEntity,attrRespVo);
//        //分类
//        if (attrEntity!=null) {
//            CategoryEntity byId = categoryService.getById(attrEntity.getCatelogId());
//            attrRespVo.setCatelogName(byId.getName());
//            attrRespVo.setCatelogPath(categoqueryBaseAttrPageryService.findCatelogPath(attrEntity.getCatelogId()));
//        }
//        //分组
//        AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = relationDao
//                .selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
//        if (attrAttrgroupRelationEntity!=null){
//            AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrAttrgroupRelationEntity.getAttrGroupId());
//            if (attrGroupEntity!=null){
//                attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
//                attrRespVo.setAttrGroupId(attrGroupEntity.getAttrGroupId());
//            }
//        }
//        //
//        return attrRespVo;
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);

        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1、设置分组信息
            AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrgroupRelation!=null){
                respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                if(attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }

        //2、设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            respVo.setCatelogName(categoryEntity.getName());
        }

        return respVo;
    }

    @Override
    public void updateAttr(AttrVo attr) {
//        AttrEntity attrEntity = new AttrEntity();
//        BeanUtils.copyProperties(attr,attrEntity);
//        this.updateById(attrEntity);
//        Integer attr_id = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
//        AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
//        BeanUtils.copyProperties(attr,attrAttrgroupRelationEntity);
//        if (attr_id>0){
//            relationDao.update(attrAttrgroupRelationEntity,
//                    new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
//        }else {
//            relationDao.insert(attrAttrgroupRelationEntity);
//        }
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrEntity);
        this.updateById(attrEntity);

        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1、修改分组关联
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();

            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());

            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if(count>0){

                relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));

            }else{
                relationDao.insert(relationEntity);
            }
        }
    }

    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {

//        List<AttrEntity> attrEntities=null;
//         List<Long> ides =null;
//        List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>()
//                .eq("attr_group_id", attrgroupId));
//        if (groupId!=null && groupId.size()>0){
//        groupId.stream().map(item ->
//            item.getAttrId()
//        ).collect(Collectors.toList());
//
//        if (ides!=null && ides.size()>0){
//            attrEntities = this.listByIds(ides);
//        }
//
//        }
 //       return attrEntities;
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));

        List<Long> attrIds = entities.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        if(attrIds == null || attrIds.size() == 0){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>) attrEntities;
    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        //relationDao.delete(new QueryWrapper<>().eq("attr_id",1L).eq("attr_group_id",1L));

        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());

        relationDao.deleteBatchRelation(entities);
    }

    //查询同一个分组下没有被关联大的属性
    //通过分组id查询他所在的分类id，然后通过分类id，查询所有的分组
    // id，然后通过分组id查询所有被关联的规格id，然后在查询所有没被关联的属性id，然后返回
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {


        //1、当前分组只能关联自己所属的分类里面的所有属性
       // this.list(new QueryWrapper<AttrEntity>().eq(""))
        //relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("",attrgroupId))
        AttrGroupEntity attrGroupEntity  = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的所有分组
        List<AttrGroupEntity> group = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> collect  = group.stream().map(item ->
                item.getAttrGroupId()
        ).collect(Collectors.toList());
        //2.2)、这些分组关联的属性
        List<AttrAttrgroupRelationEntity> groupId = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map(item ->
             item.getAttrId()
        ).collect(Collectors.toList());
        //2.3)、从当前分类的所有属性中移除这些属性；
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null && attrIds.size()>0){
            wrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);

        return new PageUtils(page);
    }

    @Override
    public List<Long> selectSearchAttrs(List<Long> attrIds) {

//        return this.listByIds(attrIds)
//                   .stream()
//                   .filter(item->item.getSearchType()==1)
//                   .map(attr->attr.getAttrId())
//                   .collect(Collectors.toList());
        List<Long> searchAttrIds = this.baseMapper.selectSearchAttrIds(attrIds);
        return searchAttrIds;
    }

}